Impacto de águas de irrigaçao e resíduos de diferentes origens nos teores de micronutrientes no solo e na cana-de-açúcar

The agricultural use of organic residues and industrial is an alternative of exploitation with fertilization and source organic matter to the soil. In this direction, the objective of this research was to evaluate the use of the urban solid waste and biofertilizer as nutrient source, and residue of the bauxite processing as agricultural liming materials of the soil, irrigated with potable water and wastewater. For in such a way experiment in vase was lead, under soil Alfisol, being evaluated the micronutrient concentrations in the soil (Cu, Fe, Mn and Zn) in the layer of 0-20 cm and leaves of sugar cane (Cu, Fe, Mn and Zn). The gotten data had evidenced the fertilization with biofertilizer increased texts of Cu significantly and Zn in the soil (0.56 and 0.63 mg dm-3, respectively), the application of residue of the processing of the bauxite raised the manganese concentrations, had not been observed changes for Fe. Already in sugar cane leaves the use of residue of the processing of the sugar cane raised texts of all the micronutrients, the application of biofertilizer and made up of urban solid waste raised texts of Cu in leaves (0.80 and 1.00 mg dm-3 respectively) however had a reduction of the text of Mn (84.66 and 89.66 mg dm-3 respectively). Ions studied in the leachate water its addition to the soil and in function of each treatment is proportional, being that, all the evaluated elements are inside of the limits established for the legislation. O objetivo deste trabalho foi avaliar o uso do composto de lixo e biofertilizante como fonte de nutrientes, e o resíduo do processamento da bauxita como corretivo da acidez do solo, irrigada com água potável e servida. Para tanto foi conduzido experimento em vaso, utilizando-se solo Argissolo Vermelho Amarelo, sendo avaliadas as concentrações macronutrientes no solo (Cu, Fe, Mn e Zn) na camada de 0-20 cm e nas folhas de cana-de-açúcar (B, Cu, Fe, Mn e Zn). Os dados obtidos evidenciaram que a adubação com biofertilizante aumentou significativamente os teores de Cu e Zn no solo (0,56 e 0,63 mg dm-3, respectivamente), a aplicação de resíduo do processamento da bauxita elevou as concentrações de manganês, não foram observados mudanças para Fe. Já nas folhas de cana-de-açúcar o uso de resíduo do processamento da cana-de-açúcar elevou os teores de todos os micronutrientes, a aplicação de biofertilizante e composto de lixo elevou os teores de Cu nas folhas (0,80 e 1,00 mg dm-3 respectivamente) entretanto houve uma red